SPANISH SECURITIES MARKET COMMISSION

Área de Mercados

Edison, 4

28046 MADRID

Madrid, 06 June, 2018

Dear Sir,

Pursuant to the provisions of Article 228 of the restated text of the Securities Market Law approved by the Royal Legislative Decree 4/2015, of 23 October, please note the following RELEVANT EVENT regarding Red Eléctrica Corporación, S.A:

On 05 June 2018, the rating agency Standard & Poor's has issued a new report maintaining the company's rating level and its outlook.

Red Eléctrica Corporación, S.A. and its subsidiary Red Eléctrica de España, S.A.U. maintain their long term ratings of 'A-' and short term ratings of 'A-2' with a stable outlook.

Yours faithfully,

Signed: Teresa Quirós

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Red Eléctrica Corporación SA published this content on 06 June 2018 and is solely responsible for the information contained herein. Distributed by Public, unedited and unaltered, on 06 June 2018 06:22:01 UTC